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Consider the following statements for dynamic characteristics of a measurement system: 1. Fidelity is defined as the degree to which a measurement system indicates changes in the measured quantity without any dynamic error. 2. Dynamic error is the difference between the true value of the quantity changing with time and the value indicated by the measurement system if no static error is assumed. 3. Measuring lag is the retardation in the response of a measurement system to changes in the measured quantity. Which of the above statements are correct?
World Bank has employed major dimensions to construct measures of governance. These dimensions are:
1. Voice and Accountability - measuring political, civil and human rights
2. Instability an d violence - measuring the likelihood of violent threats to or changes in government, including terrorism
3. Government effectiveness - measuring the competence of the bureaucracy and the quality of public service delivery
4. Regulatory burden - measuring the incidence of market, unfriendly policies
5. Rule of law - measuring the quality of contract enforcement, the police, and the courts, as well as the likelihood of crime and violence
Select the correct answer:
In retardation type measuring lag the instrument responds after an unspecified dead time lag.
Consider the following statements comparing static RAM with dynamic RAM: In static RAM typical cell requires more number of transistors than the dynamic RAM. Power consumption per bit of static RAM is less than that of dynamic RAM. Dynamic RAM is less expensive than the static RAM. Which of the above statements are correct?
For dynamic characteristics of any instruments out of the following which qualities are desirable? i. Speed of response ii. Lag iii. Fidelity iv. Dynamic error
The network formed by resistors and capacitors for modifying the rate of change of gain and the phase shift is called a compensating network. Which of the following statements are not correct ? (A) The main purpose of a compensating network is to modify the performance of op-amp ciruit over the desired frequency range (B) There are two types of op-amps : internally compensated and externally compensated (C) 741 C is an externally compensated op-amp while 709 C is internally compensated op-amp (D) The phase lag and phase lead are most commonly used compensating networks in op-amps (E) Phase lag contributes a positive phase angle and phase lead a negative phase angle Choose the most appropriate answer from the options given below : 
What is the approximate capacitor in kVAR to be added to 3.7 kW/5 hp 1440 RPM agriculture pump motor for power factor improvement from 0.75 lag to near 0.95 lag?
Assertion (A): Relative stability of the system reduces due to the presence of transportation lag. Reason (R): Transportation lag can be conveniently handled by Bode plot.
A single phase motor is connected to 400V, 50Hz supply. The motor draws a current of 31.7A at a power factor 0.7 lag. The capacitance required in parallel with motor to raise the power factor of 0.9 lag (in micro farads) is __________
A single phase motor is connected to 400V, 50Hz supply. The motor draws a current of 31.7A at a power factor 0.7 lag. The capacitance required in parallel with motor to raise the power factor of 0.9 lag (in micro farads) is ___________